mandy clark in kabul for us. thank you. >>> later today the senate is expected to vote on whether to repeal don't ask, don't tell. the house has already passed a military. on that. >> reporter: good morning. today's vote could be a close one. in any case, supporters call it a critical moment for gay rights. the senate today could move one step closer to repealing the military's don't ask, don't tell policy, a law that bans gays from sevening openly. serving democrats need 60 votes to push it through and all eyes are on a hafl of lawmakers who could cast the deciding vote. in maine monday, pop sen tasati lady gaga urged republican senators olympia snowe and collins to break and support the bill. >> doesn't it seem to you that we should send home the prejudice, the straight soldier who hate the gay soldier? >> reporter: she even had her own policy to propose. >> our new law is called, if you don't like it, go home. >> reporter: the proposal to repeal don't ask, don't tell is part of a larger defense bill. today's v